This letterbook covers the period September 1900-January 1901. Most of the correspondence is by Walter S. Mallory, vice-president of the company. The letters deal mainly with personnel matters, briquettes, company financial obligations, the suspension of operations at the Ogden works, and plans for its future reconstruction. One letter gives production statistics for 1900. Other items relate to work done for the New Jersey Zinc Co., a license issued by Edison Saunders Compressed Air Co., and experimental work with cement. A portion of the company letterhead is affixed to the front cover and is inscribed "From Sept-15-1900 to Jan 25-1901." The book contains 987 numbered pages and an index. Less than 10 percent of the book has been selected. Courtesy of Thomas Edison National Historical Park.